What Causes the Aurora Borealis' Colors?
Por un escritor de hombre misterioso
Descripción
The colors of the northern and southern lights are spectacular. Discover which elements are most responsible for the Aurora Borealis and its colors.
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The Northern and Southern Lights - What is an Aurora? - Universe Today
What causes the different shapes and colours of the aurora? - BBC Sky at Night Magazine
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Aurora Borealis — Colour Studies
The Northern Lights Were Seen Farther South in the United States - The New York Times
Northern Lights Demystified: What is the meaning of the aurora borealis?
The cause Causes of Color
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